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Your search keyword '"Anna Castaldo"' showing total 4 results
Start Over Author "Anna Castaldo" Journal sensors and microsystems
4 results on '"Anna Castaldo"'

2. AZULENE BASED GUEST-HOST POLYMERIC SENSORS

Author

Luigi Quercia, Girolamo Di Francia, and Anna Castaldo

Subjects
chemistry.chemical_compound, Materials science, chemistry, Guest host, Azulene, Photochemistry
Published
2008

4. Controlling sensing properties of composite polymers using different conductive nanoparticles

Author

Luigi Quercia, Ettore Massera, Anna Castaldo, and Girolamo Di Francia

Subjects
Materials science, Nanoparticle, Conductivity, medicine.disease, Hexane, chemistry.chemical_compound, Chemical engineering, chemistry, medicine, Molecule, Swelling, medicine.symptom, Ball mill, Electrical conductor, Vapours
Abstract

We report on a new class of polymeric sensors based on a properly selected polysilsesquioxane filled with different conductive powders obtained by ball milling. These sensors exhibit excellent sensing properties with respect to both polar and apolar analytes and do not base their operating mechanism on the swelling. In fact, exposure to water molecules or hexane vapours determines an increase of conductivity. In particular the response in the full RH% range for devices obtained with different filler (Zn-Graphite, Zn, Cu) is of four magnitude orders variation between 0% and 100% RH in the conductivity of the sensors.

Published
2008

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